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[8.18] [Security] 8.18.4 release notes (backport #6912) #6939

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Jul 22, 2025
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[8.18] [Security] 8.18.4 release notes (backport #6912) #6939

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1 change: 1 addition & 0 deletions docs/release-notes.asciidoc
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This section summarizes the changes in each release.

* <<release-notes-8.18.4, {elastic-sec} version 8.18.4>>
* <<release-notes-8.18.3, {elastic-sec} version 8.18.3>>
* <<release-notes-8.18.2, {elastic-sec} version 8.18.2>>
* <<release-notes-8.18.1, {elastic-sec} version 8.18.1>>
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25 changes: 25 additions & 0 deletions docs/release-notes/8.18.asciidoc
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[[release-notes-header-8.18.0]]
== 8.18

[discrete]
[[release-notes-8.18.4]]
=== 8.18.4

[discrete]
[[enhancements-8.18.4]]
==== Enhancements
* Improves logging of fatal exceptions in {elastic-defend}.
* Allows {elastic-defend} users to control the maximum file size for malware protection using the `advanced.malware.max_file_size_bytes` advanced policy setting.

[discrete]
[[bug-fixes-8.18.4]]
==== Fixes
* Fixes differences between risk scoring preview and persisted risk scores ({kibana-pull}226456[#226456]).
* Fixes domain validation in case observables ({kibana-pull}225901[#225901]).
* Updates a placeholder and validation message in the **Related Integrations** section of the rule upgrade flyout ({kibana-pull}225775[#225775]).
* Excludes {ml} rules from installation and upgrade checks for users with Basic or Essentials licenses ({kibana-pull}224676[#224676]).
* Allows using days as a time unit in rule schedules, fixing an issue where durations normalized to days were incorrectly displayed as 0 seconds ({kibana-pull}224083[#224083]).
* Strips `originId` from connectors before rule import to ensure correct ID regeneration and prevent errors when migrating connector references on rules ({kibana-pull}223454[#223454]).
* Refactors Timeline styling for improved consistency with design updates ({kibana-pull}222438[#222438]).
* Fixes a bug where the **Rules**, **Alerts**, and **Fleet** pages would stall in air-gapped environments ({kibana-pull}220510[#220510]).
* Fixes a bug where unmodified prebuilt rules installed before v8.18 didn't appear in the **Upgrade** table when the **Unmodified** filter was selected ({kibana-pull}227859[#227859]).
* Improves UI copy for the "bulk update with conflicts" modal ({kibana-pull}227803[#227803]).
* Fixes an issue in {elastic-defend} that may result in bugchecks (BSODs) on Windows systems with a very high volume of network connections. This issue has only been observed on Windows Server.

[discrete]
[[release-notes-8.18.3]]
=== 8.18.3
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